LakeCount. Every Lake. Measured.

States

Wisconsin5,551 lakes & ponds Minnesota3,727 lakes & ponds Michigan3,837 lakes & ponds New York1,783 lakes & ponds Vermont425 lakes & ponds Maine1,671 lakes & ponds Florida2,294 lakes & ponds Pennsylvania743 lakes & ponds Ohio352 lakes & ponds Washington1,427 lakes & ponds North Dakota756 lakes & ponds Montana1,695 lakes & ponds Texas1,641 lakes & ponds Louisiana664 lakes & ponds Wyoming783 lakes & ponds Massachusetts784 lakes & ponds Alaska2,450 lakes & ponds California1,147 lakes & ponds Colorado778 lakes & ponds Georgia728 lakes & ponds Nebraska660 lakes & ponds Oregon642 lakes & ponds Arkansas623 lakes & ponds South Dakota533 lakes & ponds New Hampshire516 lakes & ponds Illinois511 lakes & ponds Indiana425 lakes & ponds Mississippi382 lakes & ponds Oklahoma376 lakes & ponds Alabama371 lakes & ponds Connecticut363 lakes & ponds Missouri352 lakes & ponds Virginia329 lakes & ponds Idaho316 lakes & ponds New Mexico309 lakes & ponds Utah298 lakes & ponds New Jersey295 lakes & ponds North Carolina295 lakes & ponds South Carolina276 lakes & ponds Tennessee249 lakes & ponds Iowa220 lakes & ponds Nevada203 lakes & ponds Arizona198 lakes & ponds Kentucky160 lakes & ponds Kansas132 lakes & ponds Rhode Island121 lakes & ponds Maryland78 lakes & ponds Delaware58 lakes & ponds West Virginia35 lakes & ponds Hawaii11 lakes & ponds

42,573 Lakes & Ponds

Lakes / Illinois / Mercer County

Lakes in Mercer County, Illinois

2 lakes counted in Mercer County - the largest is Frye Lake at 118.86 acres.

2

Lakes Counted

118.86 acres

Largest - Frye Lake

Mercer County, highlighted, with its largest counted lakes dotted. Outlines from Census boundary data.

All Counted Lakes

#	Lake	County	Surface Area	Max Depth
1	Frye Lake	Mercer	118.86 acres	-
2	Karl Lake	Mercer	29.41 acres	-

Find a Lake in Mercer County Largest Lakes

Sources: USGS National Hydrography Dataset lake data; USGS. Verified October 30, 2026.